Locarno is an Italian-speaking resort city in southern Switzerland, on Lake Maggiore at the base of the Alps. It's well known for its sunny climate. Founded in the 12th century, the old town's Castello Visconteo houses the Museo Civico, which showcases Roman antiquities. The 15th-century Santuario della Madonna del Sasso, an art-filled pilgrimage site overlooking the city, can be reached by funicular railway.